Accident Robinson R22 Beta N179SH, Tuesday 8 January 2008
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Date:Tuesday 8 January 2008
Time:16:23 LT
Type:Silhouette image of generic R22 model; specific model in this crash may look slightly different    
Robinson R22 Beta
Owner/operator:Silver State Helicopters LLC
Registration: N179SH
MSN: 4193
Year of manufacture:2007
Total airframe hrs:521 hours
Engine model:Lycoming O-360
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:North Palm Bch, Florida -   United States of America
Phase: En route
Nature:Training
Departure airport:Stuart-Witham Field, FL (SUA/KSUA)
Destination airport:Fort Lauderdale-Executive Airport, FL (FXE/KFXE)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The helicopter was transitioning along a beach at 500 feet and 80 knots. The certificated student pilot had just contacted an air traffic control tower when the engine appeared to lose power. The student pilot raised the collective, but the situation "worsened," and he noticed a slight yaw. The student pilot then lowered the collective, and turned the helicopter left, into the wind. He subsequently completed an autorotation into the surf. The student pilot noted that prior to the loss of engine power, he didn't notice any unusual vibrations or noises, but did notice a "significant loss of power which resulted in an immediate loss of altitude." He also noted that it felt like "the sinking and yawing one experiences when settling with power." A postflight examination of the helicopter revealed no mechanical anomalies that would have precluded normal operation. Utilizing the ambient temperature and dew point, a carburetor icing probability chart produced by the National Research Council of Canada indicated a probability of "serious icing at glide power," while another chart in the FAA's Tips on Winter Flying pamphlet indicated that carburetor icing conditions bordered between "serious icing - glide power" and "light icing - glide or cruise power."

Probable Cause: A loss of engine power due to carburetor icing. Contributing to the accident was unsuitable terrain for a forced landing.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: NYC08LA078
Status: Investigation completed
Duration: 1 year and 4 months
Download report: Final report

Sources:

NTSB NYC08LA078

Location

Revision history:

Date/timeContributorUpdates
03-Oct-2022 09:46 ASN Update Bot Added

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